No, smartwatches and smart rings can’t measure blood glucose yet
If you see a smartwatch or smart ring for sale that claims to noninvasively measure your blood glucose levels, don’t believe it. Today, the Food and Drug Administration has issued a safety communication that warns consumers, patients, and healthcare professionals that the agency has “not authorized, cleared, or approved any smartwatch or smart ring that is intended to measure or estimate blood glucose values on its own.”
To be crystal clear, no major wearable maker has a smartwatch or smart ring that’s currently capable of this. The most any Apple Watch, Fitbit, Samsung watch, or Oura Ring can do is support integrations with an FDA-authorized continuous glucose monitor (CGM), which are wearable devices that use needles to read blood...